WO2022203430A1

WO2022203430A1 - Train position and track deviation detection system

Info

Publication number: WO2022203430A1
Application number: PCT/KR2022/004167
Authority: WO
Inventors: 윤용춘; 최병혁; 김향식
Original assignee: 큐비콤 (주); 벽산파워 주식회사
Priority date: 2021-03-25
Filing date: 2022-03-24
Publication date: 2022-09-29
Also published as: KR102512241B1; KR20220133558A

Abstract

Disclosed is a train position and track deviation detection system for controlling a series of a plurality of trains, wherein a foremost train and one or more rear trains and a rearmost train are sequentially connected in series and connected to each other by optical cables to be operated. According to the train position and track deviation detection system, the foremost train periodically transmits an optical signal to the rear trains that are serially connected thereto and receives the optical signal returning from the rear trains to detect separation or replacement of trains, and accordingly, accident prediction or operation information of the trains may be effectively controlled.

Description

Train location and track departure detection system

The present invention relates to a train position and track deviation detection system, and more particularly, by periodically transmitting an optical signal from the frontmost train to the rear-end trains connected in series, and receiving the optical signal returning from the rear-end trains, It relates to a train position and deviation detection system capable of detecting separation or replacement.

In general, a train is operated by connecting a plurality of vehicles in series with each other, and each train connected in series is detected by an axle counter installed on a track through which the train passes. Such an axle counter senses a train wheel passing through it and generates an electric signal (eg, Korean Patent Application Laid-Open No. 10-2016-0066994, Korean Patent Application Laid-Open No. 10-2020-0056401, etc.).

1 is a view for explaining a general axle counter.

As shown in Fig. 1, the axle counter 1 is composed of a pair of transmitting coils 1A and receiving coils 1B, and these coils 1A and 1B are

rails

2A and 2B of the track through which the train passes. installed between them.

A magnetic field is formed between the transmitting coil 1A and the receiving coil 1B to generate an induced voltage in the receiving coil 1B, and this induced voltage is decoded by a detection circuit (not shown) to be decoded indoors or through an optical cable. It is transmitted and analyzed in real time to a calculation unit located outdoors.

Therefore, when the train 3 moves along the track and the wheels of the train 3 pass between the pair of transmitting coils 1A and 1B, due to the wheels, which are generally made of a ferromagnetic material such as steel, The induced voltages generated in these coils 1A and 1B are reversed in phase (for example, a phase change of approximately 180°). Then, the voltage value changed in this way is decoded and transmitted to the trackside unit connected with a wired cable, and the corresponding train (3) ) will detect passing that point on the line.

Communication and arithmetic processing of the electrical signal of the axle counter system is processed, for example, through a standard method according to the EN/TS50238 European standard stipulated in 2011, and is generally operated through the wireless power transmission system of the line.

However, the axle counter method of such a train requires an excessively high investment cost because wired cables and optical cables must be laid over the entire rail section of the track, and numerous axle counters must be fixedly arranged at each numerous rail points.

Moreover, if a failure occurs in the axle counter sensor disposed at a specific point on the track, the corresponding data is reset and there is a problem in that it is not possible to know where the train is for a while.

For example, when installing the axle counter system in the vast plains of Mongolia, for its operation, numerous axle counter wired cables are fixed across the rails of tens of thousands of km of tracks, and communication networks such as wired and optical cables are installed. Excretion requires too much installation cost and is not economically justified.

In addition, as an example of a train operating in series on the uninhabited plain between Tabantolgoi Station and Junbayan Station in Mongolia, the total number of trains is 44, and the train length is approximately 1km (50 cars). However, in the case of trucks, the use of trucks is frequently changed to trucks in the course of operation, and cargo must be loaded when stopping at intermediate stations. Loss from heat is often caused by this. In this case, it is impossible to monitor whether the truck is lost or replaced in real time while moving to a long-distance destination.

In order to solve this problem, the present invention can detect the separation or replacement of trains by periodically transmitting an optical signal from the foremost train to the rear-end trains connected in series, and receiving the optical signal returning from the rear-end trains. An object of the present invention is to provide a train location and track departure detection system.

A train position and track deviation detection system according to the present invention for solving the above problems is configured by sequentially serially connecting a frontmost train, one or more trailing trains and rearmost trains, and a series of multiple trains connected to each other by optical cables As a train location and track deviation detection system for managing trains of In addition, the front-end train includes an optical signal transmission module that generates an optical signal and sequentially transmits the optical signal to the one or more rear-end trains and the last-most train through the optical cable, and at least one of the one or more rear-end trains and the last train and an optical signal receiving module for receiving an optical signal returned from the . In addition, the rear-end train includes an illuminance sensor that receives and detects an optical signal, and a module that transmits the sensed optical signal to a neighboring train or rear-end train connected to the optical cable. In addition, the rearmost train includes an optical signal reflection module configured to reflect the optical signal received from the rearmost train as it is to the frontmost train. In addition, the front-end train monitors the connection status of the rear-end train and the rear-end train based on an optical signal received from at least one of the one or more rear-end trains and the rear-end train, and the front-end train is the rear end When the optical connector module is separated by a lateral force applied from the outside in the train, an event in which the train is separated from the plurality of trains is detected by detecting that the optical signal of the train at the rear end is blocked.

Optionally, the optical signal transmission module includes an optical time domain reflectometer (OTDR) to inject an optical signal to the one or more rear-end trains through the optical cable, and the front-end train is separated from the train Detecting the event may be performed by receiving an optical signal reflected from the train separated by the optical signal receiving module and measuring a delay time between transmission and reception of the optical signal using the OTDR. It may include determining the position of the train.

In addition, optionally, the optical connector module may include an optical cable socket part connected to the optical cable on one side, and a fixing plug connected to the optical cable is inserted into the optical cable socket part and coupled to the optical cable socket part by the applied lateral force. The fixing plug may be detachably attached, and the optical cable socket portion may include a stopper that is narrower in width from the input end toward the inside and protrudes from the input end, and the fixing plug has a tapered cross-section that becomes narrower from one side to the other. It can be coupled by sliding the thin side of the true shape and transversely into the opening of the optical cable socket part.

In addition, optionally, the optical connector module includes a fixing plug connected to the optical cable on one side having respective fixing projections on opposite side outer sidewalls, and the other side having respective fixing requirements on the opposite side inner sidewalls. It includes an optical cable socket part connected to an optical cable, and when the fixing plug is drawn into the optical cable socket part, each of the fixing protrusions is coupled to each of the fixing requests, thereby completing the connection of the optical cable, and applying from the outside in the rear end train As each of the fixing protrusions and the fixing request are separated by a lateral force exceeding the predetermined tension, the fixing plug and the optical cable socket are separated, so that the optical connector module can be separated.

Also, optionally, the front-end train, the one or more rear-end trains, and the last-most train may each have a server communicating with each other, and the server of the first-most train is a server of each of the one or more rear-end trains and the last train It is possible to receive and detect the position information received from the , and determine whether it is within a predetermined position error or not.

Also, optionally, the server of the most recent train may calculate the location information received from each of the one or more rearmost trains and the last train through a GPS antenna.

In addition, optionally, the optical signal reflection module receives an optical signal condensing unit including a lens inclined at a predetermined angle at the rear end of the optical fiber bundle of the optical cable, and the optical signal reflected and condensed by the optical signal condensing unit. It may include a single optical fiber carrying the optical cable.

In addition, optionally, the last train may further include a module for generating an additional optical signal and transmitting the optical signal to the optical cable when receiving the optical signal from the optical cable by the optical connector module.

In addition, optionally, the one or more rear-end trains and the rear-end train include a photovoltaic panel unit that converts sunlight into electric energy to generate power, and a DC power generated by the photovoltaic panel unit required for charging A terminal information transmission device including a charging circuit unit for converting and outputting DC power, a battery unit for charging DC power output from the charging circuit unit, and a control unit for supplying power to the illuminance sensor and the laser module through the battery unit may include more.

According to the above-described configuration, the present invention has an effect that, even when several trains are connected in series, the train accident prediction and operation information can be managed by detecting the replacement or loss of rear-end trains.

1 is a view for explaining the operation of a general axle counter.

2 is a block diagram showing the configuration of a train position and track departure detection system according to an embodiment of the present invention.

3 is a block diagram schematically illustrating an internal configuration of an apparatus for transmitting and receiving terminal information according to an embodiment of the present invention.

4 is a block diagram schematically illustrating an internal configuration of a terminal information transmission apparatus according to an embodiment of the present invention.

5 is a block diagram schematically illustrating the internal configuration of a term terminal device according to an embodiment of the present invention.

6 is an enlarged view of an optical connector module according to an embodiment of the present invention.

7 is a view showing the structure of an optical connector module according to another embodiment of the present invention.

8 is a diagram illustrating a communication cycle between a terminal information transmission device and a Term terminal device according to an embodiment of the present invention.

Throughout this specification, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

The present invention relates to a train position and track deviation detection system that provides a method for detecting a position in which a train connected to a rear end is replaced or changed when a plurality of trains are connected in series and operated.

The train location and track departure detection system according to the present invention may be operated using a Trunked Radio System (TRS) network suitable for emergency communication instead of using a general commercial mobile phone network for public safety and disaster management in one embodiment. .

In addition, in one embodiment, the train position and track departure detection system of the present invention uses a TETRA (TErrestrial Trunked Radio) signal using a TRS network for emergency communication, and TETRA is a TRS-specific standard standard of the European Telecommunications Union. can follow

First, FIG. 2 is a block diagram showing the configuration of a train position and track deviation detection system according to an embodiment of the present invention. In addition, FIG. 3 is a block diagram schematically illustrating the internal configuration of an apparatus for transmitting and receiving terminal information according to an embodiment of the present invention. 4 is a block diagram schematically illustrating the internal configuration of a terminal information transmission apparatus according to an embodiment of the present invention. 5 is a block diagram schematically illustrating an internal configuration of a Term terminal device according to an embodiment of the present invention. In addition, FIG. 6 is an enlarged view of an optical connector module according to an embodiment of the present invention. Hereinafter, the present invention will be described in detail with reference to these drawings.

First, the train position and track deviation detection system of the present invention is applied to a plurality of trains connected and operated in series, and these trains include a front-end train 141 and one or more rear-end trains 142 connected thereto; It is composed of the last train 143 disposed at the end. In addition, an engine room is generally disposed in the most advanced train 141 .

The train position and track deviation detection system 100 according to an embodiment of the present invention includes a train wireless system 110 , a train location information system 120 comprising an LTS server 121 and a control room 122 , and a signal processing unit 130 , a plurality of base station devices 132 , and a plurality of trains connected to the base station device 132 by wire or wireless.

The train wireless system 110 may include a train wireless central control unit 111 .

In an embodiment, the train wireless system 110 may be configured as a network system dedicated to train wireless communication composed of small-signal wireless devices based on wireless communication technology. For example, since a communication network is configured using an ISM (Industrial Scientific and Medical) band of a 24 GHz band, the output power and allowable frequency of the device are limited so that interference with other devices is minimized.

In addition, the train wireless central control device 111 is a top-level control device of the train position and track departure detection system, and in one embodiment, an industrial computer, wireless data modem, control board, antenna unit, etc., in which a communication system operating program is installed in a rack It can be configured as a system, and it can perform the function of identifying and controlling the status of all wireless devices and tracking and controlling the status of all trains entering the network.

In addition, the main functions of the train wireless central control device 111 are train communication (train tracking function, train transmission monitoring, all section call, periodic call), train management (train number management, affiliated communication section management, train registration and deletion, warehousing), device control (cooling/heating control, lighting control), train control (train type, temporary speed control, restart command, emergency braking reset, emergency stop control), train status information monitoring (various fault status indication, operation status indication, Braking operation indication, CBTC operation status indication, train speed, speed limit, exact stop failure, emergency stop operation) may be included.

In addition, the train location information system 120 may be configured to include a Location Tracking System (LTS) server 121 and a control room 122 .

The LTS server 121 includes a terminal information transmission/reception device 150 disposed in the front-end train 141 of FIG. 3 , a terminal information transmission device 160 disposed in the rear-end train 142 of FIG. 4 , and FIG. 5 . Performs real-time location tracking and management functions of the term terminal device 180 disposed in the last train 143 of can do.

In addition, the LTS server 121 analyzes the operation route and track location information in the route information based on the location information received from each train and the train movement information according to the movement of each train to determine the position error in which various location information is determined. It is possible to calculate the consistency within

Also, the control room 122 may check each train location information, predict and manage train accidents, and manage train operation information.

In addition, the signal processing unit 130 has a function of setting a signal path for transmitting and receiving radio signals between the base station device 132 and the train location information system 120 or the base station device 132 and the train wireless system 110 . can be done

In addition, the plurality of base station devices 132 are communication facilities for connecting a communication network between a plurality of trains, the train location information system 120 , and the train wireless system 110 .

Also, in the present invention, in a plurality of trains connected in series, the most advanced train 141 may be set as a master, and the remaining trains may be set as slaves.

That is, the most advanced train 141 may have a master terminal device installed inside the engine room, and the most recent train 143 may have a term terminal 180 installed therein. One or a plurality of rear-end trains 142 connected between the trains 143 may install the terminal information transmission device 160 . In addition, each train may be connected with an optical cable 10 , and an optical connector module 170 to which the optical cable 10 is coupled is formed at the entrance side of each train.

In addition, as shown in FIG. 3 , the frontmost train 141 includes a display panel 151 , a display controller 152 , a first control unit 153 , a first GPS antenna 154 and a first RF antenna ( It may be configured to include a terminal information transmission/reception device 150 including a first modem 156 having a 155 , an optical signal transmission module 157 , and an optical signal reception module 158 .

The display panel 151 may display train speed information, operation information, and track information to an engineer operating a train based on train information input to the database.

In addition, the display controller 152 connects the display panel 151 and the first control unit 153 to transmit the control signal of the first control unit 153 to the display panel 151, and determines whether the driver's operation is performed. Through the information transmitted in response, train speed information, operation information, track information, initial position, and position error information may be transmitted to the display panel 151 .

Also, the first control unit 153 may be connected to the train wireless system 110 through the first modem 156 to transmit train location information to the display controller 152 .

In addition, the first modem 156 collects and calculates the location information of the operating train through the first GPS antenna 154 , and collects the calculated location information with the train wireless system 110 through the first RF antenna 155 . , can be transmitted to the train location information system 120 . In addition, the first modem 156 may calculate location information of its own running train or may receive location information from the rear end train 142 and the last end train 143 .

In addition, the front-end train 141 periodically transmits an optical signal that generates and transmits an optical signal to the rear-end trains (the first rear-end train, the second rear-end train, ... and the n-th rear-end train) 142 . The module 157 may be formed, and the optical signal receiving module 158 for receiving the optical signal returning from the rear end trains 142 may be configured.

In an embodiment of the present invention, the optical signal transmission module 157 includes an Optical Time Domain Reflectometer (OTDR), By receiving the returning optical signal, the position of these rear end trains 142 can be measured. In general, when a disconnection occurs in an optical path through which an optical signal travels, a reflected signal of the corresponding optical output is generated in this portion. At this time, the optical signal goes straight at the speed of light (300000 km/sec) and the reflected signal also returns at the same speed. This is possible. The conventional OTDR is an equipment capable of finding a disconnected fault point by measuring the returned waveform in the time domain by injecting light pulses of a predetermined width (eg, in the range of 5 ㎱ to 10 ㎲) to the optical line. That is, the optical signal transmission module 157 uses the OTDR to calculate the position of the separated rear end train 142 by finding the disconnected failure point due to the departure when the rear end train 142 is separated from the train. can

In addition, as shown in FIG. 4, each of the rear end trains 142 includes an illuminance sensor 161, a laser module 162, a second modem 163, a second GPS antenna 164A, and a second RF antenna ( 164B), the photovoltaic panel unit 165, the battery unit 166, the charging circuit unit 167, the second control unit 168, the terminal information transmission device 160 consisting of the second optical signal transmission module 169 can be configured to include.

Each of the rear end train 142 and the rear end train 143 is electrically connected to a neighboring train through an optical cable 10 by mounting an optical connector module 170 at an input end.

That is, as shown in FIG. 6 , in one embodiment of the present invention, the optical connector module 170 has an optical cable socket unit 171 connected to the optical cable 10 on one side, and is fixed connected to the optical cable 10 . The plug 173 may be inserted into and coupled to the optical cable socket unit 171 . The optical connector module 170 is not limited to this structure and may be a known conventional optical connector, and may be a known RJ45 connector as an example.

In addition, the optical cable socket portion 171 may be formed of, for example, a plastic material, and may be narrower in width from the input end toward the inside, and may be formed by protruding a stopper 172 made of, for example, a rubber material at the input end.

In addition, the fixing plug 173 is coupled to the end of the optical cable 10 of the external train, and has a triangular cross-section and may be configured in a tapered shape in which the width becomes narrower from one side to the other side, and the width is narrow. may be coupled by slidingly inserting the optical cable into the opening of the optical cable socket portion 171 in the transverse direction.

In addition, in the optical connector module 170, when a certain tension is applied to the optical cable 10, the optical cable socket part 171 and the fixing plug 173 are separated, so that the optical connector connection of the corresponding rear end train 142 is blocked. The optical connector module 170 may have a structure in which the optical cable socket part 171 and the fixing plug 173 are detachably attached by a lateral force.

7 shows another embodiment of the optical connector module 170 shown in FIG. The optical connector module shown in this embodiment is denoted by reference numeral 170a, and among the components of the optical cable socket portion 171a, the components and corresponding components of the optical connector module 170 shown in FIG. 6 are the same drawings. The letters "a" or "b" were added to the symbols. The optical connector module 170a of FIG. 7 is, for example, a typical USB connector and is composed of a female connector and a male connector, and an optical cable socket portion 171a connected to the optical cable 10 and an optical cable It includes a fixing plug (173a) connected to (10). In such an optical connector module 170a, the fixing plug 173a is inserted into the optical cable socket portion 171a, so that the optical cable can be coupled. As in the case of the previous embodiment, the coupling of the optical cable by the optical connector module 170a makes a connection between the

trains

142 and 143, and when the separation of these

trains

142 and 143 is made, the optical cable 10 is A certain tension is applied so that the fixing plug 173a of the optical connector module 170a is separated from the optical cable socket part 171a. In such an embodiment, a fixing means for preventing accidental separation is provided by applying a tension smaller than a predetermined tension so that the coupling is made between the fixing plug 173a and the optical cable socket portion 171a to separate them. do. To this end, fixing protrusions 172a are formed on both outer sidewalls of the fixing plug 173a, and correspondingly, fixing recesses 172b are formed on the inner sidewalls of the socket portion 171a. . When the fixing plug (173a) is inserted into and coupled to the optical cable socket portion (171a), the fixing projection (172a) of the fixing plug (173a) is coupled to the fixing request (172b) of the socket portion (171a) to the cable (10). A tension smaller than a predetermined tension can be applied to prevent accidental separation, and when the

trains

142 and 143 are separated, a certain tension is applied to the optical cable 10 to the fixing plug 173a of the optical connector module 170a. ) is separated from the optical cable socket portion 171a, the fixing protrusion 172a of the fixing plug 173a is separated from the fixing request 172b of the socket portion 171a, and the fixing plug 173a of the optical connector module 170a and the separation of the optical cable socket part 171a can be completed.

In addition, a photovoltaic power generation panel unit 165 for generating power by converting sunlight into electrical energy may be disposed on the surface of the terminal information transmission device 160, so that, for example, power generation during the daytime is possible while driving.

In addition, the second control unit 168 may be connected to the battery unit 166 to use the power generated by the photovoltaic panel unit 165 as power required for charging. To this end, the photovoltaic panel unit 165 is electrically connected to the battery unit 166 through the charging circuit unit 167 with an electric wire, and the battery unit 166 is electrically connected to the photovoltaic panel unit 165 . connected to the power supply. In an embodiment, the battery unit 166 may include a plurality of cells, and may charge DC power output from the charging circuit unit 167 .

In addition, the charging circuit unit 167 performs a function of changing the DC power generated by the photovoltaic power generation panel unit 165 into DC power required for charging and outputting the DC power according to the control of the second control unit 168 . The charging circuit unit 167 prevents overcharging and overdischarging during charging and discharging of the battery unit 166, and by making the voltage between cells uniform, energy efficiency and the lifespan of the battery unit 166 are increased. It can be implemented to perform control. In addition, the charging circuit unit 167 converts the DC power generated by the photovoltaic panel unit 165 into DC power required for charging and outputs it.

In addition, the second control unit 168 through the battery unit 166, the illuminance sensor 161, the laser module 162, the second modem 163, the second GPS antenna 164A, the second RF antenna ( 164B) is supplied.

In addition, the illuminance sensor 161 may receive and sense an optical signal through the optical connector module 170, and the second control unit 168 transmits the optical signal detected by the illuminance sensor 161 to the laser module ( 162) is sent. Then, the laser module 162 loads the optical signal on the laser signal and transmits it to the neighboring train connected by the optical cable 10 .

In addition, the second modem 163 may collect and calculate the position information of the rear end train 142 through the second GPS antenna 164A, and collect the calculated position information through the first RF antenna 155 at the most forward end. It may be periodically transmitted to the train 141 , the train wireless system 110 , and the train location information system 120 .

And, when the optical cable socket 171 and the fixing plug 173 are separated by the lateral force, the second control unit 168 generates an optical signal and transmits it to the optical cable 10 on the frontmost train 141 side. 2 may further include an optical signal transmission module 169 .

Meanwhile, as shown in FIG. 5 , the last train 143 is a train connected to the last train among a plurality of trains, and the optical signal reflection module 181 , the second modem 163 , and the second GPS antenna 164A. , Term terminal device consisting of a second RF antenna 164B, a photovoltaic panel unit 165, a battery unit 166, a charging circuit unit 167, a second control unit 168, and an I/O module 184 ( 180) may be included.

The term terminal device 180 may be configured in the same way as the above-described terminal information transmission device 160 .

And, the rearmost train 143 is electrically connected to the neighboring train 142 through the optical cable 10 by mounting the optical connector module 170 at the input end. Therefore, as described above, in the last train 143 , the optical connector module 170 of FIG. 6 has an optical cable socket part 171 connected to the optical cable 10 on one side is formed, and is fixed connected to the optical cable 10 . The plug 173 is inserted into and coupled to the optical cable socket portion 171 .

In addition, the optical signal reflection module 181 in the last train 143 may include a single optical fiber and an optical signal concentrator for reflecting and condensing the optical signal received from the optical cable 10 by the optical connector module 170 . can

The optical signal condensing unit may include, for example, a specially coated concave lens disposed at the rear end of the optical fiber bundle of the optical cable 10 inclined at a predetermined angle, and the optical signal reflected and condensed by the lens is transmitted to a single optical fiber. Then, the optical fiber is connected to the optical cable 10 , receives the optical signal reflected and condensed by the concave lens, and transmits the received optical signal to the optical cable 10 .

In one embodiment of the present invention, the optical signal reflection module 181 of the rearmost train 143 performs a function of reflecting the optical signal received from the optical cable 10 toward the frontmost train 141 as it is.

Alternatively, as another alternative embodiment, when the second control unit 168 receives the optical signal from the optical cable 10 by the optical connector module 170 in the last train 143, the third optical signal transmission module ( (not shown) to generate an optical signal and transmit it to the optical cable 10 .

Also, FIG. 8 is a diagram illustrating a communication cycle between a terminal information transmission device and a Term terminal device according to an embodiment of the present invention.

Referring to FIG. 8 , the communication cycle between the terminal information transmission device 160 of the most advanced train 141 and the term terminal device 180 of the latest train 143 may be configured as follows, and the terminal information It may be defined according to the settings of the transmitter 160:

(i) the terminal information transmitter 160 generates a control signal including poll and ping data and transmits it to the terminal terminal 180 through the first RF antenna 155;

(ii) When the Term terminal device 180 receives a control signal from the terminal information transmission device 160 through the I/O module 184, it generates an ACK signal (Ping) during Inter Frame Space (IFS) 2 through the RF antenna 164B to the terminal information transmitter 160;

(iii) Communication between the terminal information transmission device 160 and the Term terminal device 180 is reset when the Term terminal device 180 does not receive a Poll due to a failure of the terminal information transmission device 160, and the Term terminal If the terminal information transmission device 160 does not receive a ping response due to a failure of the device 180, it is reset.

As described above, according to the train position and track deviation detection system of the present invention, the earliest train 141 connected in series with each other and one or more rear end trains 142 connected thereto and the last train disposed at the last stage In (143), the first control unit 153 of the front-end train 141 receives the information of the lost or replaced rear-end train 142, the train wireless system 110, and the train location information system 120 monitoring by transmitting periodically or in real time.

Accordingly, in the present invention, when a plurality of trains are connected in series and operated, it is possible to periodically or in real time manage train accident prediction and operation information by detecting whether the rear end train(s) is replaced or lost.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto. is within the scope of the right.

Explanation of symbols

1: axle counter

1A: transmission coil

1B: receiving coil

A: rail of the track

2B: rail of the track

3: train

100: train position and track deviation detection system

110: train wireless system

111: train wireless central control unit

120: train location information system

121: LTS Server

122: control room

130: signal processing unit

132: base station device

140: train

141: the earliest train

142: rear end train

143: last train

150: terminal information transmitting and receiving device

151: display panel

152: display controller

153: first control unit

154: first GPS antenna

155: first RF antenna

156: first modem

157: optical signal transmission module

158: optical signal receiving module

160: terminal information transmission device

161: light sensor

162: laser module

163: second modem

164A: second GPS antenna

164B: second RF antenna

165: solar power panel unit

166: battery unit

167: charging circuit unit

168: second control unit

169: second optical signal transmission module

170: optical connector module

171, 171a: optical cable socket part

172: stopper

172a: fixing projection

172b: fixed request

173, 173a: fixing plug

180: Term terminal device

181: optical signal reflection module

184: I/O module

Claims

In the train position and track deviation detection system for managing a series of trains in which the foremost train and one or more rearmost trains and the rearmost train are sequentially connected in series and connected to each other by optical cables to operate,

Each of the one or more rear-end trains and the rear-end train includes an optical connector module mounted on an input terminal and is electrically connected to a neighboring train through the optical cable,

The front-end train includes an optical signal transmission module that generates an optical signal and sequentially transmits the optical signal to the one or more rear-end trains and the last-most train through the optical cable, and returns from at least one of the one or more rear-end trains and the last train An optical signal receiving module for receiving an incoming optical signal,

The rear-end train includes an illuminance sensor for receiving and detecting an optical signal, and a module for transmitting the sensed optical signal to a neighboring train or rear-end train connected to the optical cable,

The rearmost train includes an optical signal reflection module configured to reflect the optical signal received from the rearmost train as it is to the frontmost train side,

The front-end train monitors the connection status of the rear-end train and the rear-end train based on an optical signal received from at least one of the one or more rear-end trains and the last-most train,

The front-end train detects an event in which the train is separated from the plurality of trains by detecting that the optical signal of the rear-end train is blocked when the optical connector module is separated by a lateral force applied from the outside in the rear-end train. train position and track deviation detection system.
According to claim 1,

The optical signal transmission module includes an optical time domain reflectometer (OTDR) to inject an optical signal to the one or more rear-end trains through the optical cable,

Detecting the event in which the train is separated by the most advanced train receives an optical signal reflected from the train separated by the optical signal receiving module and uses the OTDR to transmit and receive the optical signal Train position and track deviation detection system comprising measuring the position of the separated train by measuring the delay time.
3. The method of claim 1 or 2,

The optical connector module includes an optical cable socket part connected to the optical cable on one side, and a fixing plug connected to the optical cable is inserted into and coupled to the optical cable socket part, and the optical cable socket part and the fixing plug are detachably attached by an applied lateral force. ,

The optical cable socket portion includes a stopper that is narrower in width from the input end toward the inside and protrudes from the input end,

The fixed plug has a tapered shape in which the cross-section becomes narrower from one side to the other, and the narrow side is inserted into the opening of the optical cable socket part by sliding in the transverse direction to be coupled to the train position and track deviation detection system .
3. The method of claim 1 or 2,

The optical connector module includes a fixing plug connected to the optical cable on one side having respective fixing protrusions on opposite side outer side walls, and an optical cable socket connected to the optical cable on the other side having respective fixing requirements on the opposite side inner side walls. part, wherein when the fixing plug is drawn into the optical cable socket part, each of the fixing protrusions is coupled to each of the fixing grooves to complete the connection of the optical cable,

As each of the fixing protrusions and the fixing request are separated by a lateral force exceeding a predetermined tension applied from the outside in the rear end train, the fixing plug and the optical cable socket part are separated to separate the optical connector module, characterized in that train position and track departure detection system.
According to claim 1,

The frontmost train, the one or more trailing trains, and the last train each include a server communicating with each other, and the server of the most recent train receives location information received from each server of the one or more trailing trains and the last train Train position and track deviation detection system, characterized in that it detects and determines the consistency of whether it is within a predetermined position error.
4. The method of claim 3,

The train position and track deviation detection system, characterized in that the server of the foremost train calculates the position information received from each of the servers of the one or more rearmost trains and the last train through a GPS antenna.
According to claim 1,

The optical signal reflection module

an optical signal collecting unit including a lens inclined at a predetermined angle at a rear end of the optical fiber bundle of the optical cable; and

Train position and track deviation detection system, characterized in that it comprises a single optical fiber for receiving the optical signal reflected and condensed by the optical signal condensing unit and transmitting it to the optical cable.
According to claim 1,

When the last train receives an optical signal from the optical cable by the optical connector module, the train position and track deviation detection system further comprises a module for generating an additional optical signal and transmitting it to the optical cable.
According to claim 1,

The one or more rear-end trains and the rear-end train include a photovoltaic panel unit for generating power by converting sunlight into electric energy;

a charging circuit unit for changing the DC power generated by the photovoltaic panel unit into DC power required for charging and outputting it;

a battery unit for charging the DC power output from the charging circuit unit; and

Train position and track deviation detection system, characterized in that it further comprises a terminal information transmission device including a control unit for supplying power to the illuminance sensor and the laser module through the battery unit.